The Days and Months We Were First Born- Family By Fate (Book 2 of 3), by Christopher Hunter, is back in the Kindle store and once again free.
It was apparently free on Smashwords (but is, no longer), so Amazon dropped the price. He fixed the price at SM and added the book back to Kindle, but Amazon hasn't updated the price yet. Grab it while it's free, if you want it.
The third title,
The Days and Months We Were First Born - The Journey (Book 3 of 3), is $2.99 and not likely to change price anytime soon.
From the file sizes, each "book" seems about a novella in length and the only review so far seems to think it sets the stage well for a series of actual novels later on.